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taint2

or t'aint

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noun Slang: Vulgar.
  1. the area between the testicles or vulva and the anus; the perineum.

Origin of taint2

it ain’t (the one or the other), meaning it is the area in between
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for t'aint

taint

verb
  1. to affect or be affected by pollution or contaminationoil has tainted the water
  2. to tarnish (someone's reputation, etc)
noun
  1. a defect or flawa taint on someone's reputation
  2. a trace of contamination or infection
Derived Formstaintless, adjective

Word Origin

C14: (influenced by attaint infected, from attain) from Old French teindre to dye, from Latin tingere to dye
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for t'aint

taint

v.

1570s, "to corrupt, contaminate," also "to touch, tinge, imbue slightly" (1590s), from Middle English teynten "to convict, prove guilty" (late 14c.), partly from Old French ataint, past participle of ataindre "to touch upon, seize" (see attainder). Also from Anglo-French teinter "to color, dye" (early 15c.), from Old French teint (12c.), past participle of teindre "to dye, color," from Latin tingere (see tincture). Related: Tainted; tainting.

Online Etymology Dictionary, © 2010 Douglas Harper